Return to Answer

added 13 characters in body

Source Link

edited Jul 10, 2018 at 6:41

380.1k
127
793
897

grep -f a.txt <(cut -d '.' -f 1 up.txt) > common.txt

grep -vf <(cut -d '.' -f 1 dw.txt) common.txt

$ grep -f a.txt <(cut -d '.' -f 1 up.txt) > common.txt
$ grep -vf <(cut -d '.' -f 1 dw.txt) common.txt

comparesCompares first word between 2 files and writes to matching word to commoncommon.txt.txt Compares dw.txtdw.txt with common.txtcommon.txt and print inverted match ie. 'c'.

grep -f a.txt <(cut -d '.' -f 1 up.txt) > common.txt

grep -vf <(cut -d '.' -f 1 dw.txt) common.txt

compares first word between 2 files and writes to matching word to common.txt Compares dw.txt with common.txt and print inverted match ie. 'c'

$ grep -f a.txt <(cut -d '.' -f 1 up.txt) > common.txt
$ grep -vf <(cut -d '.' -f 1 dw.txt) common.txt

Compares first word between 2 files and writes to matching word to common.txt. Compares dw.txt with common.txt and print inverted match ie. 'c'.

Source Link

answered Jul 9, 2018 at 9:29

Nisha

grep -f a.txt <(cut -d '.' -f 1 up.txt) > common.txt
grep -vf <(cut -d '.' -f 1 dw.txt) common.txt

compares first word between 2 files and writes to matching word to common.txt Compares dw.txt with common.txt and print inverted match ie. 'c'